Thread Subject:

index out of bound

I get the following error can anyone tell me how to resolve this?

??? Attempted to access n(50,50); index out of bounds because numel(n)=1.

Error in ==> fresnel_theory at 19
        numerator(x,y)=(((n(x,y))-(1/n(x,y)))^2)*((sin(theeta_incident))^2);

Error in ==> file_reading_plotting_pol_angle at 95
        [n]=fresnel_theory(I_min,I_max,x,y);